A stock exchange needs extremely low latency in their disk subsystem. Which disk storage technology is mostlikely to fulfill their need?（） SSD。 SSA。 SAS。 SAN。
水垢是指（），水垢的危害有（）。
Which statement is true regarding synonyms?（） Synonyms can be created only for a table 。 Synonyms are used to reference only those tables that are owned by another user 。 A public synonym and a private synonym can exist with the same name for the same table 。 The DROP SYNONYM statement removes the synonym, and the table on which the synonym has been created becomes invalid。
Which of the following Oracle features is enabled by setting a nonzero value for the MEMORY_TARGET initialization parameter？（） Automatic PGA Memory Management。 Automatic SGA Memory Management。 Automatic Shared Memory Management。 Automatic Memory Management。 Manual SGA Memory Management。 None of the above。
最早控制巴西的殖民者是（）。 西班牙。 葡萄牙。 荷兰。 英国。
What is the minimum amount of memory required for a new LPAR to be built via NIM on AIX 6.1？（）
